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VizieR

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I/260/ccdmhipn Visual Double Stars in Hipparcos (Dommanget+, 2000)
The Catalogue (41255 rows)
  recno=30738
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Note: Note that the J2000 coordinates are not part of the original catalogue, they were computed from dRAs and dDEs, or from the (rho,theta); their accuracy can be low.

ColumnValue  Explain   (UCD)
_RAJ200018 17 36.336 "h:m:s" Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra)
_DEJ2000-34 06 25.20 "d:m:s" Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec)
_RAB195018 14 17.627 "h:m:s" Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra)
_DEB1950-34 07 32.55 "d:m:s" Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec)
_Glon358.827651 deg Galactic longitude (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lon)
_Glat-08.470518 deg Galactic latitude (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lat)
30738recno 30738  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

CCDM18176-3406  (Catalogue of the Components of the Double and Multiple stars) number (Note)   (meta.id;meta.main)
rComp    [B-Z?] Reference component (blank if A) (meta.code.multip)
CompA   [A-Z?] Concerned component (Note)   (meta.code.multip)
Note1    [*&] orbit flag (Note)   (meta.code)
Note2    [@%] astrometric binary (Note)   (meta.code)
Disc   Name of the pair (Discoverer and Number) (Note)   (meta.id)
dRAs 0.33 s Remainder of RA in second of time; (pos.eq.ra;arith.diff)
dDEs -25.1 arcsec Remainder of DE in arcsecond; (pos.angDistance)
r_dRAs41   Source code for positions (Note)   (meta.ref)
Year  yr Year of measured relative position (time.epoch)
theta  deg Position angle (degrees) (Note)   (pos.posAng)
rho  arcsec angular separation of Comp along theta (pos.angDistance)
Obs 4   for A component: number of components; other component: number of measurements (meta.number)
Vmag  mag magnitude (phot.mag;em.opt.V)
SpB5  spectrum (src.spType)
pmNote    [*@$#] Origin of the proper motion (Note)   (meta.ref)
pmRA -58 mas/yr annual proper motion in 0"001 (pos.pm;pos.eq.ra)
pmDE -47 mas/yr annual proper motion in 0"001 (pos.pm;pos.eq.dec)
DM-3412673.2  First identification = DM (Harvard system) (Note)   (meta.id)
Name2 209959.8  Second identification (Note)   (meta.id)
HD167647  HD designation (meta.id)
m_HD    [*?/0-9 ] second HD (Note Example: 131843/4)   (meta.code.multip)
ADS/BDS   ADS number (A) or BDS number (B) (meta.id)
m_ADS/BDS    [aN] suffix (a) to an inserted ADS number N = Note in the WDS (meta.code.multip)
n_IDS    [*W] Note on IDS designation (Note)   (meta.note)
IDS18110S3408A  Uncorrected Index designation (1976.5) (equinox 1900) and identification letter; (meta.id)
HIP 89637   Hipparcos Catalogue (I/239) number (meta.id)

RAJ2000274.4014 deg (i) Right Ascension (J2000) computed at CDS (pos.eq.ra;meta.main)
DEJ2000-34.1070 deg (i) Declination (J2000) computed at CDS (pos.eq.dec;meta.main)
  
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